| Dimensional Management |
| Contechs provides a managed DM/DVA (Dimensional Management/Dimensional Variation Analysis) service to improve the quality of design and reduce the cost of manufacture by managing and controlling variation. |
Phase |
DM/DVA deliverable |
 |
| Pre-concept |
Advise on styling guidelines
D.M. Planning Competitor benchmarking
Competitor benchmarking
Identification of constraints
Document dimensional objectives
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|
| Concept |
Develop design alternatives
Develop assembly alternatives
Define initial locating schemes/sequences for assembly process
Define initial datum schemes, GD & T.
Indicative results on optimum strategy
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|
| Design |
Refinement/Optimisation
Supplier tolerance liaison
Product documentation
Change control
Gateway status reporting (inc. problem resolution)
DVA model updated to include surrogate capability
Define measurement plan
Develop list of critical characteristics
VA prediction input to all Level 3 & 4 measurement points
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|
| Validation |
Verify tooling and gauge design
Conduct gauge repeatability and reproducibility studies
Validate assembly tools
Perform capability studies
Measure 1st off tools
Functional evaluation
Variation reduction
Validate manufacturing capability meets design intent
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|
| Launch |
Data gathering -SPC (Statistical Process Control)
Root cause analysis
Comparison of actual values to predicted feedback of measurement of manufacturing noise
Capturing lessons learned
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(c)Contechs 2008| 电话+44(0)1268 582900 传真+44(0)1268 582901 电邮info@contechs.co.uk
